@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Prompt:wght@300;400;500;600;700&display=swap');

:root {
  /* Professional Color Palette */
  --primary-color: #2563eb; /* Royal Blue */
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --secondary-color: #475569;
  --accent-color: #0ea5e9;
  --background-color: #f8fafc;
  --surface-color: #ffffff;
  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --border-color: #e2e8f0;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.05), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.05), 0 4px 6px -4px rgb(0 0 0 / 0.05);
  --shadow-glow: 0 0 15px rgba(37, 99, 235, 0.2);
  
  /* Radii */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Prompt', 'Inter', -apple-system, sans-serif;
  background-color: var(--background-color);
  background-image: radial-gradient(circle at top right, #eff6ff, transparent 400px),
                    radial-gradient(circle at bottom left, #f8fafc, transparent 400px);
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Inter', 'Prompt', sans-serif;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

a {
  text-decoration: none;
  color: var(--primary-color);
  transition: all var(--transition-fast);
}

a:hover {
  color: var(--primary-hover);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Glassmorphism Header */
.main-header {
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.6);
  padding: 1rem 0;
  margin-bottom: 2.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}

.main-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: 'Inter', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links > a:not(.btn-login) {
  font-weight: 500;
  color: var(--text-secondary);
  font-size: 0.95rem;
  position: relative;
  padding: 0.5rem 0;
}

.nav-links > a:not(.btn-login)::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: width var(--transition-normal);
  border-radius: 2px;
}

.nav-links > a:not(.btn-login):hover {
  color: var(--primary-color);
}
.nav-links > a:not(.btn-login):hover::after {
  width: 100%;
}

.user-greeting {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
  font-weight: 500;
  background: var(--primary-light);
  border: 1px solid rgba(37, 99, 235, 0.1);
  padding: 0.4rem 1rem;
  border-radius: 2rem;
  font-size: 0.9rem;
}

.user-greeting i {
  color: var(--primary-color);
}

/* Premium Buttons */
.btn-primary, button[type="submit"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(to right, var(--primary-color), var(--primary-hover));
  color: white !important;
  border: none;
  padding: 0.6rem 1.5rem;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-weight: 500;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition-bounce);
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover, button[type="submit"]:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(37, 99, 235, 0.3);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: white;
  color: var(--text-primary) !important;
  border: 1px solid var(--border-color);
  padding: 0.6rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  background-color: var(--background-color);
  border-color: #cbd5e1;
}

/* Cards with Soft Shadow */
.card {
  background: var(--surface-color);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(226, 232, 240, 0.5);
  padding: 2.5rem;
  margin-bottom: 2.5rem;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
  box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.05), 0 8px 10px -6px rgb(0 0 0 / 0.05);
}

/* Stat Cards */
.stat-card {
  background: linear-gradient(145deg, #ffffff, #f8fafc) !important;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg) !important;
  padding: 1.5rem !important;
  transition: all var(--transition-bounce);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(to right, var(--primary-color), var(--accent-color));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-normal);
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.stat-card:hover::before {
  transform: scaleX(1);
}

.stat-card h3 {
  font-family: 'Inter', sans-serif;
  font-size: 2.5rem !important;
  font-weight: 700;
  color: var(--text-primary) !important;
  margin-bottom: 5px !important;
  background: linear-gradient(135deg, var(--text-primary), var(--primary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-card p {
  font-weight: 500;
  color: var(--text-secondary) !important;
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-primary);
  font-size: 0.95rem;
}

input[type="text"],
input[type="password"],
input[type="email"],
textarea,
select {
  width: 100%;
  padding: 0.8rem 1rem;
  background-color: var(--background-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 1rem;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  background-color: white;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px var(--primary-light);
}

/* Tables */
.table-responsive {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  background: white;
  margin-top: 1rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  white-space: nowrap;
}

th {
  background-color: #f8fafc;
  text-align: left;
  padding: 1.2rem 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border-color);
}

td {
  padding: 1.2rem 1rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: background-color var(--transition-fast);
}

tr:hover td {
  background-color: #f1f5f9;
}

tr:last-child td {
  border-bottom: none;
}

/* Modern Tabs */
.tabs {
  display: flex;
  border-bottom: 2px solid var(--border-color);
  margin-bottom: 2rem;
  gap: 2rem;
}

.tab-link {
  padding: 1rem 0;
  color: var(--text-secondary);
  position: relative;
  font-weight: 500;
  font-size: 1.05rem;
  transition: color var(--transition-fast);
}

.tab-link:hover {
  color: var(--primary-color);
}

.tab-link.active {
  color: var(--primary-color);
  font-weight: 600;
}

.tab-link.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--primary-color);
  border-radius: 2px 2px 0 0;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 5px;
  margin-top: 2rem;
}

.page-link {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-color);
  background: white;
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-weight: 500;
}

.page-link:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

/* Alerts */
.alert {
  padding: 1rem 1.5rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.alert-success {
  background-color: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.alert-danger {
  background-color: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

/* Footer */
.main-footer {
  text-align: center;
  padding: 2rem 0;
  color: var(--text-secondary);
  margin-top: 4rem;
  font-size: 0.9rem;
}

/* Category Selector in Forms */
.category-selector {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
  margin-top: 10px;
}

.category-selector label {
  cursor: pointer;
  margin: 0;
}

.cat-option-input {
  display: none;
}

.cat-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  background: white;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-bounce);
  height: 100%;
}

.cat-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.cat-btn:hover {
  border-color: var(--primary-light);
  background-color: #f8fafc;
  transform: translateY(-2px);
}

.cat-option-input:checked + .cat-btn {
  border-color: var(--primary-color);
  background-color: var(--primary-light);
}

.cat-option-input:checked + .cat-btn .cat-icon {
  color: var(--primary-color);
  transform: scale(1.1);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
  .main-header .container {
    flex-direction: column;
    gap: 1rem;
  }
  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
  }
  .card {
    padding: 1.5rem;
  }
  .stat-card h3 {
    font-size: 2rem !important;
  }
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.25rem 0.6rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.badge-success {
  background-color: #dcfce7;
  color: #166534;
}

.badge-info {
  background-color: #e0f2fe;
  color: #0369a1;
}

.badge-warning {
  background-color: #fef3c7;
  color: #b45309;
}